Need to Add square banner

Hi, I want to add square banner to left side of my home page. My template is "simple green". Please help me for this. Example : demo simple green template layout

Hello Alan,

What banner do you want to add??? Would you please explain in more details.

http://www.flynax.com/templates.html in this link you can see square banner in left side in simple green template.

Hello, Any developer help me for this ?